Masonry guide line holder



FIG. 1 is a perspective view of a masonry guide line holder showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof the right side being a mirror image; and

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a masonry guide line holder, as shown and described. 